0.13.6: Use https for nodejs.org

• #129

0.13.5: improved user-agent identification

• Current user-agent: 'nodeenv/' + nodeenv_version + ' (https://github.com/ekalinin/nodeenv/)' which is match convension for user agent strings[1]. Thanks to @tracker1 (from here)

[1] https://en.wikipedia.org/wiki/User_agent#Format_for_automated_agents_.28bots.29

0.13.4: custom user-agent

• #125
• #127

0.13.3: improvements for unicode handling

• #49
• #96
• #122
• #124

0.13.2: Fixed freeze command

• Fixed freeze command. See # 121

0.13.1: Fixed bug for "nodeenv --list"

Fixed bug: nodeenv --list is raising TypeError. See #117, #118

0.13.0: Removed deps from sort, egrep, curl, tar

• Removed deps from sort, egrep, curl, tar. See #114, #116

0.12.3: fix for py3

• Fixed check for installed curl/tar/etc for py3. See #110, #61

0.12.2: Added check for installed curl/egrep/sort/tar

• Added check for installed curl/egrep/sort/tar. See #110, #61

0.12.1: Removed dep for lxml & added travis-ci integration

• Removed dep for lxml in favor of stdlib HTMLParser. See #109
• Added integration with travis-ci. See #109
• Added some tests. See #109